Door



DOOR.

APPLICAHON FILED MAY 10, 19IB.

Patented Oct. 10, 19226 2 SHEETSSHEET 1- J. E. OGDEN AND J. B. HOWELL.

13mm a1,/% armm I Patented Oct. 10,1922.

2 SHEETSSHEET 2.

J. E. OGDEN AND J. B. HOWELL.

DOOR.

APPLICATION FILED MAY 10. 1916.

Patented Oct. 10, 1922.

aranir oenica.

JOHN EDWARD OGDEN, OF MOUNTAINVILLE, AND JOHN B. HOWELL, OF NEW YORK,

N. Y.; SAID HOWELL ASSIGNOR TO SAID OGDEN. 7

DOOR.

. Application filed May 10, 1916. Serial No. 96,477.

T 0 all w from it may concern Be it known that we, JoHN EDWARD OG- DEN,a citizen of the United States, and a resident of Mountainville. countyof Orange, and State of- New York, and JOHN. B. HOWELL, a citizen of theUnited States, and a resident of New York, city, county, and State ofNew York, have invented certain new and useful Improvements in Doors, ofwhich the following is a specification, reference being had to theaccompanying drawings, forming a part thereof.

Our invention relates to doors and particularly to large, heavy doorssuch as are employed in factories, warehouses, pier sheds, and the like.

One object of our invention is to provide an improved door of theaforesaid class having 'two or more sections, hereinafter referred to asa multi-section door, which is opened by first elevating one of thelower sections upon the section above and then swinging the overlappingsections away from the-plane of the door opening at the A. furtherobject is to provide simple and improved means for exerting not only alifting or hoisting force substantially in the plane of the dooropening, but also'a force in a plane at an angle to the door openingacting upon the top of the door to swing it from and back to its closedposition.

Other objects and advantages of our invention will be set forthhereinafter, and in order that our invention may he thoroughlyunderstood we will now proceed to describe the same in the followingspecification and then point out the novel features thereof in appendedclaims.

Referring to the drawings:

Figure 1 is a transverse sectional elevation of a two-section doorarranged and constructed in accordance with our invention and equippedwith an actuating mechanism which constitutes an embodiment thereof.

Figure 2 is a sectional plan view of the door and its actuatingmechanism, and

Figure 3 is a view corresponding to one end of Figure 2 showing'thehoisting and clutch mechanisms drawn to a larger scale.

Figure 4 is a view corresponding to Figure 2, of a modified arrangementwhich also embodies my invention.

Still other modifications are shown in Figends are secured to the ures 5and 6 which correspond to Figures 2 and 4.

Referring to Figures 1 to 3 inclusive 10 designates one of the doorposts, .11 the lintel of the doorway, tion which is pivotally suspendedby links 13, a bottom section l4,a hoisting mechanism 15, and acompensating or fusee pulley mechanism 17.

The upper section 12 has guideways 18 which are adapted to receive thelower section 14 as it is raised and overlaps the upper section.

Secured to the door posts 10 are stationary guideways 19 which hold thelower section in place when it is below the guideways 18 of the uppersection. Rollers 20 are preferably mounted at the lower corners of thebottom section and cooperatewith the door posts.

The hoisting mechanism comprises a pair of counterweights 21 which mayconveniently be disposed in the door posts which are made hollow toreceive them. The mechanism further comprises a head shaft 22 to whichis secured near its opposite ends, a pair of pocket sheaves 23. Chains24 are connected-to the counterweights, extend over the pocket sheaves23 and at their opposite bottom door section near its lowercorners. Ahand chain 25 is suspended from a sheave 26 on a countershaft 27 whichis connected by a train of gearing 28 to the head shaft 22, thearrangement 'of parts being such that when the hand chain is actuated inone direction or the other, it turns the head shaft-in a well knownmanner to raise or lower the door.

Mounted on the head shaft is a'gear Wheel 29 which is adapted to meshwith a sliding gear 30 on a shaft 31 which is substantially parallel tothe head shaft and carries the compensating or double fusee pulley.

Thegear wheel 30 is splined or otherwise mounted to slide on the shaft31, and is adapted "to drive the shaft when in mesh with the gear wheel29. It has a hub 32 which is provided with an annular slot or groove 33,as clearly shown in Figure 3. An actuating lever 34 is pivotally mountedat 35 and has a bifurcated arm which engages the groove 33 on oppositesides of the shaft 31. The opposite end of the lever is preferably bentat right angles as indicated at 36 and 12 the upper door secterminatesin a spherical or rounded end 37. A spring 38 exerts a pull on thelever, tending to throw the gear wheel 30 into mesh with the gear wheel29,-but the parts are so arranged that when the upper door section isclosed against the casing it engages the spherical end 37 of the leverand holds the lever in opposition to the spring 38 in position torelease the gear wheel 30 from the gear wheel 29, as shown in full linesin Figure 3.

The fusee pulley 17 comprises a pair of frusto-conical sections 39 and40 on which the respective ends of a chain or cable 41 are wound. Thechain extends over a stationary sheave 42 which is located at a materialdistance from the plane of the door opening and is supported by a hanger43. The chain 41 is connected at a point 44 to the top of the upper doorsection 12. These parts are so arranged that when the shaft 31 is drivenin one direction or the other, one chain or cable 41 is unwound from onefrusto-conical pulley section and is gathered in on the other.

The operation of this door is as follows: Assuming that the door isclosed as shown in the drawings, the gear wheel 30 being out of meshwith the gear wheel 29, if the hand chain 25 is actuated in onedirection, the lower door section 14 is hoisted and overlaps the uppersection 12. This independent movement of the lower section is limited inany suitable manner so that the two doors are obliged to move togetherafter they are overlapped.

Further upward movement of the hoisting chains will raise the loweredges of the door sections vertically and during this further upwardmovement of the lower edges, the other. parts. of the door sections willswing inwardly.

As soon as the top of the upper section swings inwardly away from thedoor casing, the lever 36 is released and the spring 38 moves the gears29 and 30 into mesh. A connection is now established from the head shaft22 which is driven in response to the hand chain, to the shaft 31 onwhich the double fusee pulley is mounted. As the actuation of the handchain is continued, the chain 41 exerts an inward pub on the top of thedoor tending to move it inwardly and thus assist in the opening of thedoor.

On the other hand, when the hand chain is operated in the reversedirection, the chain 41 pulls back on the top of the door and the headshaft 22 is so turned as to move the counterweights and close the door.This action continues until the upper section again engages the doorcasing and forces the.

lever 36 inwardly whereupon the gear 30 is again released from the gear29 and the shaft 31 allowed to remain at rest. A continued actuation ofthe hand chain in the same direction serves to further raise thecounterweights and permit the bottom section to descend to its closedposition.

In Figure 4, we have shown a modified structure which corresponds'tothat of the previous figures, except for the fusee pulley 17 and theguide sheave 42 is omitted, a chain 46 being attached at one end to thetop of the upper door section and wound upon the sheave 45.

In operation there is of course no pull exerted upon the door tending toopen it at the top but the chain 46 is paid out so that it does notretard the opening movement of the door. hen the door is closed however,the pulley 45 gathers in the chain 46 and exerts a positive pull whichmaterially assists in closing the door and pulling the upper sectionagainst the casing.

The shape of the pulley sections in both modifications is such as tocompensate for the varying speed of movement of the top of the upper.door section relative to the bottom of the same.

During the first part of the upward movement of the lower edge of thissection the outward movement of its upper edge is at a greater rate thanthat of such upward movement, but this ratio gradually changes so thatduring the latter part of the up- 9 ward movement of the lower edge theoutward movement of the upper edge is at a lower rate than that of suchupward movement.

As shown in Figure 2, the chain 41 is 106 paid off from the part of thepulley section 40 of largest diameter and around upon a correspondingpart of pulley section 39 during such first movement of the section andgradually reaches the parts of the pulley sections of smaller diameterduring the opening movement of this upper door section.

lVhat we claim is:

1. The combination with a door adapted 110 to move upwardly in the planeof the door opening and then swing away from the door opening at thetop, of hoisting means for the door, means for exerting forces tendingto swing the door away from. or toward the door opening, an operativeconnection between said means, and means dependent upon the position ofthe door for releasing said operative connection.

2. The combination with a door adapted to move upwardly in the plane ofthe door opening and then swing away from the door opening at the top,of hoisting means applied to the door at the bottom, means for exertingforces applied to the top of the door tending to swing it away from ortoward the door opening, an operative connection between said means, andmeans, dependent upon the position of the door, for releasing saidoperative connection.

3. The combination with a multi-section door having an upper sectionpivotally suspended from above, a bottom section adapted to slideupwardly on the upper section and to swing with the upper section awayfrom the door opening at the top, of hoisting means for the door, meanstending to swing the top of the door away from or toward the opening,gearing for connecting the aforesaid means, and a clutch operating torelease one of said means when the upper door section is in its closedposition.

4. The combination with a multisection door having an upper sectionpivotally suspended from above, a bottom section adapted to slideupwardly on the upper section and to swing with the upper section awayfrom the door opening at the top, of hoisting means connected to thebottom of the lower section and acting substantially in the plane of thedoor opening, means for exerting a pull at an angle to the plane of thedoor opening, tending to swing the top of the door away from or towardthe opening, gearing for connecting the aforesaid means, and a clutchoperating to release one of said means when the upper door section is initsclosed position.

5. The combination with a multi-section door having an upper sectionpivotally suspended from' above and a bottom section adapted to slideupwardly on the upper section and to swing with the upper section awayfrom the door opening at the top, of hoisting means for the door, meansfor exerting forces to swing the door away from or toward the dooropening, an operative connection between said means and means dependentupon the position of thedoor for releasing said operative connection.

6. The combination with a door comprising an upper section pivotallysuspended from above, a bottom section adapted to slide on the uppersection, means for guiding the bottom section at its lower end, ahoisting mechanism comprising chains connected to the lower corners ofthe bottom section, a chain connected to the top of the upper sectionfor moving said section transversely of thedoor opening, a drivingpulley for the chain, means for connecting the driving pulley to thehoisting mechanism, and means dependent upon the position of the doorfor interrupting said connection.

7. The combination with a door pivotally suspended fromv above, meansfor guiding the lower corners of the door vertically and permitting theupper part of the door in the opening movement to swing away from thedoor opening, hoisting mechanism, means f or positively drawing theupper end of the door away from and toward the door opening embodyingconnections flexibly engaged with the upper part of the door and meansfor actuating said last mendriving pulley for the tioned means from thehoisting mechanism at variable rates proportioned to variations inmovement between the top and bottom of the door.

8. The combination with a door comprising an upper section pivotallysuspended from above, a bottom section adapted to slide on the uppersection, means for guiding the bottom section at its lower end, ahoisting mechanism comprising chains connected to the lower corners ofthe bottom section, a cable or chain connected to the top of the uppersection for moving said section transversely of the door opening, acable or chain, means for connecting the driving pulley to the hoistingmechanism, and. means dependent upon the closing of the upper doorsection for releasing the connection to permit independent movement ofthe bottom section.

9. The combination with a door comprising an upper section havingguideways, suspen-. sion links for supporting the upper section, a lowersection adapted to slide in the guideways of the upper section, meansfor guiding the lower end of the bottom section in the plane of theopening, hoisting mechanism adapted to act upon the lower end of thebottom section, a pair of spaced pulleys on opposite sides of the planeof the door open ing, a flexible member on said pulleys, secured to thetop of the upper section for moving said section transversely of thedoor opening, and means for connecting one of said pulleys to thehoisting mechanism.

10. The combination with a door comprising an uppersection havingguideways, suspension links for supporting the upper section, a lowersection adapted to slide in the guideways of the upper section, meansfor guiding the lower end of the bottom section in the plane of theopening, hoisting mechanism adapted to act upon the lower end of thebottom section, a pair of spaced pulleys on opposite sides of the planeof the door opening, a flexible member on said pulleys, secured to thetop of the upper section for moving said section transversely of thedoor opening, and means for connectingone of said pulleys to thehoisting 115 mechanism, and means dependent upon the position of thedoor for interrupting said connection.

11. The combination with a door comprising an upper section havingguideways, sus- 120 pension links for supporting the upper section, alower section adapted to slide in the guideways of the upper section,means for guiding the lower end of the bottom section in the plane ofthe opening, hoisting mech- 125 anism adapted to act upon the lower endof the bottom section, a. pair of spaced pulleys on opposite sides ofthe plane of the door opening. a flexible member on said pulleys,secured to the top of the upper section for 130 moving said sectiontransversely of the door opening, a slip gear adapted to be driven bythe hoisting mechanism in one position, a lever for shifting theposition of the gear and a spring tending to hold the gear in mesh, saidlever being adapted to be actuated by the upper door section in itsclosed position to release said connection and permit independentmovement of the lower section.

12. The combination with a door adapted to swing away from the dooropening at the top, a hoisting mechanism, flexible elements connectingsaid hoisting mechanism with the lower corners of the door, a shaftoperatively connected with the hoisting mechanism, a two-section fuseepulley on the shaft, guide means opposite said pulley and on theopposite side of the door opening, and a flexible member with its endsaflixed to the unlike portions of said pulley and extending from onepart of said fusee pulley to the other part thereof over said guidemeans, and a connection between the top of the door and said flexiblemember, where-- by the top of the door may be moved away from or drawntoward the plane of the door opening.

13. The combination with a door adapted to swing inwardly above the dooropening, of hoistmg means acting. on the door in one plane, means actingat an angle to the hoisting means tending to swing the top of the dooraway from, and toward the door opening, and means dependent upon theposition of the door for establishing an operative connection betweensaid means.

14. The combination with a door adapted to swing inwardly above the dooropening, of hoisting means for the door, and means adapted to beoperatively connected to the ioisting means and acting at an angle tothe hoisting forces for swinging the top of the door away from andtoward the door opening, and means dependent upon the position of thedoor for releasing the connection to permit the hoisting means to actindependently.

15. The combination with a door arranged to swing out of a verticalclosed position to a non-vertical open position above the door openingof a door hoisting connection acting in the plane of the door opening, aconnection for moving the top of the door from and towards the plane ofthe opening, said connections having different rates of movement andincluding drums so proportioned as to compensate for the difference inmovement of the connections, and means for actuating said connections.

Inwitness whereof, we have hereunto set our hands, this 8th day of May,1916.

JOHN EDWARD ODGEN. JUHN B. HOWELL. Witness:

J. B. Moonn.

